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Trunk-DS1 2

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telcomwork

Technical User
Mar 2, 2002
1,625
US
I have a G3R-R11. We have four T1a for local calling. We only have about 500 or so people in our building. We are looking to two remove two local trunks and add them onto a new carrier for LD calls.

Can anyone give me some "best practice" advice for removing two trunks without taking out any other trunks that may be dependant?

I did a "disp synch" and there is no primary or secondary synchnization sources.

I'm going to look at the trunk, route patterns and ports as to what's using them them, .... what else can I look for so I don't have problems swinging these Ts as we as so I can diable them for testing?

Thanks Ladies and Gentlemen
Jeff
 
My advice is to first change any routing patterns so that the T1's you are removing are not the route of any outgoing calls.

This would allow you to remove the trunks and reconfigure them as you need to. It should not bother any calls in progress, and no new calls will start on these trunks.

If these trunks are part of a larger trunk group that carries incoming calls (as well as outgoing), you might consider having your local provider do their work first. Have them do a "graceful busyout", which busy's each trunk on the T1 as it becomes idle.

If your T1 trunks are all part of one big trunk group, you might have to do this during off hours. (Weekends or late nights) so you don't cause any calls to drop.

Carpe dialem! (Seize the line!)
 
You can do a campon busyout trunk group/member on each individual channel and take each one out of service gracefully. The previous suggestion of removing them from existing route patterns is a good one too. The G3 will not route a call to you're out of service trunk if it has a backup in its route pattern so you may want to make sure with 2 circuits removed all of your calls can still go out of the other 2 circuits. You SHOULD have a syncroniztion no if's and or buts. Whatever DS1 you use for sync should have slip detection set to a "y" on the change ds1 form.
But if you make sure all of you're route patterns can access the 2 circuits you leave while swinging the other 2 over no outbound calls will be dropped.
 
Thanks guys!

All these are separate Ts each using a trunk group. I found the route patterns today and have a plan of action.

Thanks for helping me out!
 
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